<?php
/*
 * Copyright (c) 2013 Eugene Kuzmenko
 *
 * Permission  is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in  the Software without restriction, including without limitation the rights
 * to  use,  copy,  modify,  merge, publish, distribute, sublicense, and/or sell
 * copies  of  the  Software,  and  to  permit  persons  to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The  above  copyright  notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE  IS  PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED,  INCLUDING  BUT  NOT  LIMITED  TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS  FOR  A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS  OR  COPYRIGHT  HOLDERS  BE  LIABLE  FOR  ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * For more information, see <http://www.aljey.com>.
 */

use Al\Core\Lib\Service,
    Doctrine\Common\Util\Inflector;

/**
 * Determines a way to properly retrieve a field value of an entity.
 *
 * @param string|object $entity
 * @param string $field
 * @return string
 */
function smarty_modifier_entity_get($entity, $field) {
  $em = Service::get('em');
  $entity = $em->entityLongClass($entity);
  $meths = $em->getPublicMethods($entity);
  $response = '';
  if (in_array($field, $em->getPublicProperties($entity), true)) {
    $response .= $field;
  } elseif (in_array($field, $meths, true)) {
    $response .= "$field()";
  } else {
    $classified = Inflector::classify($field);
    if (in_array($meth = "get$classified", $meths, true) ||
        in_array($meth = "is$classified", $meths, true)) {
      $response .= "$meth()";
    } else {
      $response .= $field;
    }
  }
  if (in_array($em->getClassMetadata($entity)->getTypeOfField($field),
      array('date', 'time', 'datetime', 'datetimetz'), true)) {
    $response .= '|date_format';
  }
  return $response;
}